Rick Ludwin

For "a show about nothing," Seinfeld definitely gave us plenty: Close talkers, low talkers, regifters, Festivus, snacking double-dippers, the Soup Nazi, puffy shirts and the Manssiere support undergarment for men – not that there's anything wrong with that.

You’ll never watch Jimmy Fallon’s “Tonight Show” the same way after reading this column.

I always learn a lot about TV when former NBC late-night programming executive Rick Ludwin returns to speak to students at Miami University, his alma mater.

On Thursday night, he revealed NBC's camera tricks on Fallon’s top-rated “Tonight Show” to overcome limitations of cramped Studio 6B in New York’s Rockefeller Center – and a few other observations about Stephen Colbert and the changes in TV’s late-night landscape.